Results 221 to 240 of 308
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02-05-2020, 07:36 PM #221
I’ll give this stuff a go too then Steve, not sure I can face the grief of sieving any more cat litter and the associated Mrs grief that goes the the mess lol
16 baskets to knock up next week
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02-05-2020, 07:54 PM #222
Nice one mate.
You might scrape 16 out of five 14 litre bags, but 6 bags should see you with a couple of baskets worth left over.
You'll definitely ask yourself what the hell we were doing with the sanicat it really is totally different to work with.
Would be interesting if we knew which of the 2 clays perform better, I'd guess at the sanicat because its more porous but who knows.
It took a good few hours for the Danish pink to soak all the way through which makes you wonder if it therefore takes longer for the ammonia to travel through it.... But who knows. If it works it works!
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02-05-2020, 08:17 PM #223
The proof off the pudding will show in a week of so no doubt mate
Just buzzed you a pm as it happens
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04-05-2020, 07:18 PM #224
Handy Kenny was right about the quality of baskets differing.
My last lot came from "Aquatics4all" on eBay and were ok, but a little bit flimsy as one snapped when lifting it out of the pond (filled with litter).
Received more today from All Pond Solutions, similar price, same size, identical design, but they are very slightly thicker and stronger. There's not a lot in it, but they're definitely better.
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04-05-2020, 10:46 PM #225
Mine were from all pond solutions and seem sturdy enough but when I looked earlier they were out of stock.
New ones coming from Swell so will report in on quality when they get here
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05-05-2020, 07:42 PM #226
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06-05-2020, 11:02 AM #227
Hi my current pond design has a 2 m wide 12 inch deep marginal plant ledge. I have 6 round planters on it but could easily swap them to 6 square larger baskets. This would be in addition to my current filtration which also incoporates marine pure to help with nitrate break down. The natural flow of the pond washes past my plant baskets. My thinking is i hate that i added the plant shelf but if i make annoxic pots it at least serves a purpose.
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12-05-2020, 02:53 PM #228
For the new pond design I'm getting concerned with the idea of how to get rid of nitrates. Currently on the old pond we have both nitrifying plants in both the pond (including lillies at about 70cm) and in the waterfall head.
I was thinking through the design the my new pond - ~11900l and it seems that it may be worth sacrificing a vertical slice or vertical corner to make an anoxic filter. Baskets stacked vertically 1 wide but deep then use a pole and hook if they need changing.
The new pond, due to it's shape doesn't have those veggie areas. So I'm slightly concerned how it would work with out something to extract nitrates.
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12-05-2020, 03:30 PM #229
Anoxic Filtration - So Shocked I Nearly Burnt my Dinner
You’ve got so many posts/threads going on with all these wacky ideas I’m struggling to follow what exactly you are planning if I’m honest
If you read Manke’s website you’ll see that anoxic filtration is best used as a stand-alone system, the people who have incorporated it into other other systems have found they perhaps were not getting the results they were expecting.
Goes for the post above yours also.
Sent from my iPhone using TapatalkLast edited by bigcarpchaser; 12-05-2020 at 04:32 PM.
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15-05-2020, 10:12 PM #230
Final batch of 16 baskets in now using the “new” clay and R’s tights over the top methods.
Piece of cake. Quick shake, quick rinse, in the chamber.
Probably took me a couple of hours tops to make including weighing the Aquabasis and balling up plus another hour messing around tonight.
Beats 2 days with the sanicat!!
Now to see if anything changes in the next couple of weeks before I remove my shower.
Fingers crossed.
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17-05-2020, 01:41 PM #231
Might have some good news for you BCC.
Had 15 baskets up until 16 days ago when I added the new Danish pink baskets with total now at 23 baskets (15 koi) and just carried out the first comprehensive water test since.
Ammonia 0
Nitrite 0
PH 8.2 (as always)
Nitrates Between 5mg/l and 10mg/l (was 20mg/l 16 days ago)
Phosphates 0.25 mg/l. This is the lowest reading I've ever had. Readings are normally between 1mg/l & 2 mg/l with the latter being the more common reading since anoxic installation.
This is the first evidence that phosphates are now being dealt with by the baskets and even though I've recently added plants they are too small and insignificant to have made this change. The extra baskets must be supporting this improvement.
More time and further tests needed to see if this is a new trend.
Sent from my Pixel 2 using TapatalkLast edited by RS2OOO; 17-05-2020 at 01:46 PM.
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17-05-2020, 01:50 PM #232
When I built the pond I have now I used to have a fair few plants in the pond, when building at the narrow end I layer concrete lintels side by side to make a shelf and then fibreglassed it all.
did it really to keep as much water volume in the pond and still have a shelf.
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18-05-2020, 07:51 AM #233
Is there any concept of sizing for anoxic filters?
11900-12300l - normal stocking? 18 baskets 30x30x30cm. 'm considering moving the filters to the garage and then having the filter pit as a anoxic filter and I would kick myself hard if there is a better way of filtering rather than doing costly water changes.
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18-05-2020, 07:57 AM #234
Yes Nick, read my article and you will see the recommendation regarding the number of baskets and what is the estimated effect of having a few baskets running in competition with an existing conventional system:
Anoxic Filtration
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18-05-2020, 08:58 AM #235
I did note the 1 basket per fish previously but I was thinking, 1 adult fish to 1000 litres with good filtration is the usual minimum volume per fish quoted (although 4000 per female and 2000 per male I've seen quoted).
12,000 litres for example = 12 adult fish = 12 baskets. Then adding some spare capacity 18 baskets would be good.
I understand why you're suggested that have the two filters in parallel isn't a good idea, that can be solved at a later date rather than a Big Bang filter switch. The filter I would move to the garage would be the drum and bio (which can be phased out to become a fines filter).
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18-05-2020, 11:27 AM #236
Yes, that would be a good number to use.
For years, filter manufacturers have been using the sales talk "this Wizzy Gizmo Super Filter is suitable for x number of litres" which is pure BS except for a lightly stocked pond with a low feeding rate.
It's the amount of food per day, it's protein content, fish activity etc. that really dictates biofilter sizes but that's a difficult concept to put into an easy phrase like "x number of litres". Kevin's approach was that one basket can handle the ammonia and other pollutants from an active, well fed adult fish so anoxic users should size their system according to "one basket per adult fish" which is an easy thing to calculate and remember.
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20-05-2020, 09:35 PM #237
Very interesting read, both the posts here and Manky Sanke web page, its certainly making me think more about add this type of filter to my design, id like the idea of a veg filter but this could fit in just as well and be more beneficial.
Would it pay to run the supply from the drum before the bio filter or would it be ok to come after the bio, would the bio starve (for want of a better word) the Anoxic filter of food ? the feed from this filter would enter the pond by a wear/fall thats ok for the warmer months but in the winter can it go down a simple skimmer/overflow and an inlet under the water in the main pond.
Best Wishes and great reading
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20-05-2020, 11:24 PM #238
Welcome horse1uk,
To do anoxic properly you shouldn't have any other biofiltration. The Anoxic filter is your bio.
Only reason some of us have bio filters is because our ponds were established before adding the anoxic baskets.
As far as I can see with mine, the bio filter and Anoxic are working together hand in hand so I haven't been in a rush to remove the moving bed, but intend to.
I believe BigCarpchaser is planning on removing his bio filtration imminently.
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21-05-2020, 08:38 AM #239
Im with you on that, my concern is with my first pond proper and in the design and working it all out stage I didn't want to go both feet first into Anoxic filter and have no wiggle room for moving bed or static bio, I had pretty much made my mind on the Profi Drum Combi Bio TC 30, that was 30% larger than i needed for my pond size and allowed for a high water turn over with no Anoxic, I wanted to incorporate a veg garden for the Mrs to grow in and not be in the main pond that would also help on the bio and that made me think it could easily work as the Anoxic, at the end of the day the only differences are the crates full of the media.
Therefore if i went all out on the Anoxic if i had enough space for a suitable sized Anoxic Filter for a pond and moderate stocking level, if i dont have the space the Anoxic would pick up anything extra, from the way im reading it 5 crates are better than no crates so it can work as parallel system rather than a standalone ? unless im completely mis-understanding it.
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21-05-2020, 09:41 AM #240
Anoxic Filtration - So Shocked I Nearly Burnt my Dinner
Here’s an idea for you Horse, make your veggie pond anoxic and planted. Get the best of both.
Stick with your combi if that’s what you’ve got your heart set on but don’t put any media in the MB side. If you feel the need to add it later then you have your wiggle room.
Bit of an expensive way of doing it with a combi though.
Alternatively, have a stand-alone drum with room for a MB or shower to add on later.
As RS says, in a couple of weeks I am going to remove my shower, in stages, and closely monitor the effects that reducing the amount of media makes. Currently all water parameters are good.
I’m not convinced the anoxic deals with DOC’s (in my pond at least) as I have a Clarity CL10 protein skimmer recirculating water through one of my chambers and that is constantly producing a good amount of foam so if that wasn’t on there where does all that go?
I also trickle in a moderate amount of fresh water but nowhere near 10%, probably 5% every couple of weeks.
Perhaps if I stopped that my nitrate May fall to zero instead of hovering around the 20ppm mark...will have to bite the bullet and try at some point.
Sent from my iPhone using TapatalkLast edited by bigcarpchaser; 21-05-2020 at 09:55 AM.
Aquaforte Dm vario 20000 pumps
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